Have the leader(s) of your clan re-download the app. I have seen other posts on this glitch, but it is very few who actually can't. I suggest just re-download and then try again (our experience is we have been able to use/see them).

to put you out of your misery... they dont work, and havent worked since the first clan war, there's an issue on the app beachhead are aware of this and have stated its on their to fix list.,, this has been known since the first war ended.